Hire us
Support us
(New)
All problem can be solved using search box
I want to sell my website www.AtoZmath.com with complete code
Home
College Algebra
Games
Feedback
Support us
About us
Algebra
Matrix Algebra
Numerical Methods
Statistical Methods
Operation Research
Word Problems
Calculus
Geometry
Pre-Algebra
Translate this page
What's new
1.
LQ Decomposition
on 20.03.19
2.
Muller method
on 20.03.19
3.
Matrix Algebra
on 17.03.19
1.
with variables
`[[2x,3y],[3x,4z]]`
2.
with complex numbers
`[[-5i,3i],[4i,5i]]`
3.
with surds
`[[1/sqrt(2),sqrt(2)],[4,-5]]`
4. PERT and CPM
1.
Network diagram
on 10.03.19
2.
Critical path, Total float, Free float, Independent float
on 10.03.19
3.
Project scheduling with uncertain activity times (Optimistic, Most likely, Pessimistic)
on 10.03.19
4.
Project crashing to solve Time-Cost Trade-Off with fixed Indirect cost
on 10.03.19
5.
Project crashing to solve Time-Cost Trade-Off with varying Indirect cost
on 10.03.19
Topics
Home
Algebra
Matrix Algebra
Numerical Methods
Statistical Methods
Operation Research
Word Problems
Calculus
Geometry
Pre-Algebra
College Algebra
Games
Test
Method and examples
Compound Interest
1. Calculate Compound Interest and amount on Rs 4500 at 10 % per annum in 3 years.
2. Calculate Compound Interest and amount on Rs 625 for 2 years at 9 %, compounded half-yearly.
3. Calculate Compound Interest on Rs 8000 for 9 months at 20 % per annum, compounded quartely .
4. What sum of money becomes Rs 9261 in 3 years at 5 % per annum, compounded annually ?
5. What will Rs 25000 amounts to in two years at Compound Interest if the rates for successive years be 4 % and 5 % per year.
6. A sum of money amounts to Rs 6690 after 3 years and to Rs 10035 after 6 years on compound interest. Calculate the sum of mone ...
7. A man borrows Rs 2500 at 5 % simple interest for 2 years. He immediately lends this money at compound interest at the same ra ...
8. The difference between the compound interest and the simple interest on a certain sum at 10 % per annum for 2 years is Rs 52 ...
9. If the compound interest on a certain sum for 3 years at 10 % per annum be Rs 331 , what would be the simple interest ?
10. A sum of money 2 times itself at compound interest in 15 years. In how many years, it will become 8 times of itself ?
Problem 8 of 10
8. The difference between the compound interest and the simple interest on a certain sum at
% per annum for
years is Rs
. Find the sum.
Solution
Example
Solution
Solution provided by AtoZmath.com
Want to know about
AtoZmath.com and me
This is demo example. Please click on Find button and solution will be displayed in Solution tab (step by step)
Compound Interest
8. The difference between the compound interest and the simple interest on a certain sum at 10 % per annum for 2 years is Rs 52 . Find the sum.
Here `R = 10 %, N = 2` years and `CI - SI = 52` .
Let the sum be Rs `X`. Then,
`SI = (P*R*N)/100 = (X * 10 * 2) / 100 = 0.2 X`
`CI = P (1 + R/100)^N - P`
`= X ( 1 + 10 / 100 ) ^ 2 - X`
`= X ( 110 / 100 ) ^ 2 - X`
`= X (( 110 / 100 ) ^ 2 - 1 )`
`= 0.21 X`
`:. CI - SI = 0.21 X - 0.2 X = 0.01 X`
So, `0.01 X = 52`
=>` X = 5200` .
Hence, Sum = Rs `5200`.
Share with your friends, if solutions are helpful to you.
Home
College Algebra
Games
Feedback
Support us
About us
Copyright © 2019. All rights reserved.
Terms
,
Privacy
Review Consent